Efinaconazole Impurity 40 CAS 161287-08-7
| CAS No. | 161287-08-7 |
| Molecular Formula | C13H15F2N3O4S |
| Molecular Weight | 347.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Efinaconazole Impurity 40 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Efinaconazole Impurity 40 (CAS 161287-08-7) is a certified pharmaceutical impurity reference standard with the molecular formula C13H15F2N3O4S and a molecular weight of 347.34 g/mol.
The molecular framework of Efinaconazole Impurity 40 (C13H15F2N3O4S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C13H15F2N3O4S |
| Molecular Weight | 347.34 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Efinaconazole Standards
- Efinaconazole Impurity 13 (CAS CATO-C4X-124313)
- Efinaconazole impurity 52 (CAS CATO-C4X-124352)
- Efinaconazole Impurity 18 (CAS 2055038-61-2)
- Efinaconazole Impurity 19 (CAS 164650-45-7)
- Efinaconazole Impurity 20 (CAS 2055038-60-1)
- Efinaconazole Impurity 23 (CAS CATO-C4X-124323)
- Efinaconazole Impurity 39 (CAS 2122222-10-8)
- Efinaconazole (CAS 164650-44-6)
Recommended Standards
- Isavuconazole Impurity 218 (CAS CATO-C4X-1236218)
- Ciprofloxacin Impurity 41 (CAS CATO-C4X-136241)
- Tofacitinib Impurity 234 (CAS CATO-C4X-1079234)
- Ciprofloxacin impurity 51 (CAS CATO-C4X-136251)
- Eldecalcitol Impurity 14 (CAS CATO-C4X-214014)
- Ezetimibe Impurity 139 (CAS CATO-C4X-1098139)
- Baloxavir lmpurity 58 (CAS CATO-C4X-210858)
- 4-Amino-2-methyl-2,3-dihydrobenzofuran-7-carboxylic acid (CAS 166743-19-7)
- 4-Bromo-5-(difluoromethyl)-6-methylnicotinoyl chloride (CAS 1805376-71-9)
- 3-(4-Fluorophenyl)-4-(((5-methylfuran-2-yl)methylene)amino)-1H-1,2,4-triazole-5(4H)-thione (CAS 587007-03-2)
- 1-Bromo-3,6-difluoro-2-(difluoromethoxy)benzene (CAS 1519049-10-5)
- Di-tert-butyl (6-bromo-7-chloroisoquinolin-3-yl)iminodicarbonate (CAS 2769112-82-3)
- 3-Cyclopropoxy-2-formyl-N,N-dimethylisonicotinamide (CAS 1243385-16-1)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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